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https://issues.apache.org/jira/browse/CASSANDRA-11823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15406919#comment-15406919
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Stefania commented on CASSANDRA-11823:
--------------------------------------
CI looks good, committed to 3.0 as 52be7bac4160c392605f2ec6c2f98d4e49ccf2fe and
merged upwards.
> Creating a table leads to a race with GraphiteReporter
> ------------------------------------------------------
>
> Key: CASSANDRA-11823
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11823
> Project: Cassandra
> Issue Type: Bug
> Components: Observability
> Reporter: Stefano Ortolani
> Assignee: Edward Ribeiro
> Priority: Minor
> Labels: lhf
> Fix For: 3.0.9, 3.9
>
> Attachments: CASSANDRA-11823.patch
>
>
> Happened only on 3/4 nodes out of 13.
> {code:xml}
> INFO [MigrationStage:1] 2016-05-18 00:34:11,566 ColumnFamilyStore.java:381 -
> Initializing schema.table
> ERROR [metrics-graphite-reporter-1-thread-1] 2016-05-18 00:34:11,569
> ScheduledReporter.java:119 - RuntimeException thrown from
> GraphiteReporter#report. Exception was suppressed.
> java.util.ConcurrentModificationException: null
> at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
> ~[na:1.8.0_91]
> at java.util.HashMap$KeyIterator.next(HashMap.java:1453) ~[na:1.8.0_91]
> at
> org.apache.cassandra.metrics.TableMetrics$33.getValue(TableMetrics.java:690)
> ~[apache-cassandra-3.0.6.jar:3.0.6]
> at
> org.apache.cassandra.metrics.TableMetrics$33.getValue(TableMetrics.java:686)
> ~[apache-cassandra-3.0.6.jar:3.0.6]
> at
> com.codahale.metrics.graphite.GraphiteReporter.reportGauge(GraphiteReporter.java:281)
> ~[metrics-graphite-3.1.0.jar:3.1.0]
> at
> com.codahale.metrics.graphite.GraphiteReporter.report(GraphiteReporter.java:158)
> ~[metrics-graphite-3.1.0.jar:3.1.0]
> at
> com.codahale.metrics.ScheduledReporter.report(ScheduledReporter.java:162)
> ~[metrics-core-3.1.0.jar:3.1.0]
> at
> com.codahale.metrics.ScheduledReporter$1.run(ScheduledReporter.java:117)
> ~[metrics-core-3.1.0.jar:3.1.0]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_91]
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> [na:1.8.0_91]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> [na:1.8.0_91]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> [na:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_91]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_91]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
> {code}
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